Question re: Clutch fluid

[Chaos]

I thought my clutch fluid was running low, so I opened it up, but it looks ok (it was a false reading due to how the washer in the reservoir was blocking the level window). But it made me think up these:

I am not sure what DOT designation of the fluid is because I had it bled and replaced in Regina. It might be on the receipt, so I will have to look for it.

Assuming I know the designation, is it ok to simply add more fluid into the reservoir, or is it better to bleed it the fluid out and replace it?

Assuming I don't know the designation, is there a way to find out? I know DOT3 and DOT4 are compatible, but DOT5 is not compatible with either. Am I just better off bleeding it?

 

[Shaman]

Most modern motorcycles are DOT4. I'd just do a lazy-man's flush on it, which entails pumping out the existing fluid using the lever until the reservoir is nearly depleted, topping up, doing it again and then do the other caliper (presuming you have two). Just do it with a bleeder hose in a container that has the bottom of the hose submerged in a bit of brake fluid and be sure to shut the bleeder every time you let the lever back out. Works better with two people. Lots of youtube examples, I'm sure.

 

[frekeyguy]

Most modern motorcycles are DOT4. I'd just do a lazy-man's flush on it, which entails pumping out the existing fluid using the lever until the reservoir is nearly depleted, topping up, doing it again and then do the other caliper (presuming you have two). Just do it with a bleeder hose in a container that has the bottom of the hose submerged in a bit of brake fluid and be sure to shut the bleeder every time you let the lever back out. Works better with two people. Lots of youtube examples, I'm sure.

clutch have dual calipers? !!?!?!


OP: Just flush and bleed the old fluid out. Fluid is cheap....

 

[Shaman]

Wow. My meds really kicked in this morning, I guess.

Everything I just said, minus the calipers, then.